“His charity work, in particular his role as chairman of The Duke of Edinburgh awards, has benefitted millions of young people across Scotland. He also gave over 50 years of service to Edinburgh University during his time as Chancellor there.

“He has always served with enthusiasm and a healthy sense of humour. I have always thoroughly enjoyed any time that I have spent in his company.

“I know that even as he steps back from public life, the Duke will continue to be a huge support to the Queen. I wish him all the very best for a happy and peaceful retirement.”